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Modular Open Chamber Stand for Biomass Densification Using the Example of Miscanthus × Giganteus Greef Et Deu

Author

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  • Jakub Styks

    (Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, Balicka 120, 31-120 Kraków, Poland)

  • Marek Wróbel

    (Department of Mechanical Engineering and Agrophysics, University of Agriculture in Krakow, Balicka 120, 31-120 Kraków, Poland)

Abstract

This article presents a modular open chamber stand which simulates the densification process that occurs in a single channel of a pelletising die. The results of the verification tests confirmed the suitability of this stand for determining the optimal geometry of the channel. The test material was the biomass of Miscanthus × giganteus which is considered to be a difficult material for pressure densification; therefore, it was decided that it would be a good material for verifying the stand. The stand consists of four modules: an introductory section with a diameter of D = 12 and 10 mm, a conical part with an angle of α = 10°, 20°, 30°, 40°, a cylindrical part with lengths L = 5, 15, 25, 35, 45 mm and diameter d= 8 mm and a pellet receiving module. The stand is able to heat the densification channel. Individual modules can be assembled into test combinations; this results in a change in channel geometry without the necessity to manufacture many singular channels. The optimum geometry of the channel for miscanthus with a moisture content of 13%, densified at 100 °C was determined. It should be a channel with D = 10 mm, α = 40° and L = 18 mm.

Suggested Citation

  • Jakub Styks & Marek Wróbel, 2024. "Modular Open Chamber Stand for Biomass Densification Using the Example of Miscanthus × Giganteus Greef Et Deu," Sustainability, MDPI, vol. 16(16), pages 1-22, August.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:16:p:7123-:d:1459530
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    References listed on IDEAS

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    1. Jakub Styks & Marek Wróbel & Jarosław Frączek & Adrian Knapczyk, 2020. "Effect of Compaction Pressure and Moisture Content on Quality Parameters of Perennial Biomass Pellets," Energies, MDPI, vol. 13(8), pages 1-20, April.
    2. Larsson, Sylvia H. & Rudolfsson, Magnus & Nordwaeger, Martin & Olofsson, Ingemar & Samuelsson, Robert, 2013. "Effects of moisture content, torrefaction temperature, and die temperature in pilot scale pelletizing of torrefied Norway spruce," Applied Energy, Elsevier, vol. 102(C), pages 827-832.
    3. Gendek, Arkadiusz & Aniszewska, Monika & Owoc, Danuta & Tamelová, Barbora & Malaťák, Jan & Velebil, Jan & Krilek, Jozef, 2023. "Physico-mechanical and energy properties of pellets made from ground walnut shells, coniferous tree cones and their mixtures," Renewable Energy, Elsevier, vol. 211(C), pages 248-258.
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    1. Jakub Styks & Marek Wróbel & Sławomir Francik, 2025. "Production of Compacted Biofuels in Terms of Their Quality—Current State of Research," Energies, MDPI, vol. 18(13), pages 1-27, July.

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